Patents by Inventor Bernd Geiser
Bernd Geiser has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20160205453Abstract: The present invention relates to an external speaker/microphone apparatus for use with an electrical device for providing audio signals and/or for voice communication. The apparatus comprises: one or more speakers and one or more microphones; and a housing that encloses the one or more speakers and the one or more microphones. The shape of the housing is formed from a number of twelve or more flat surfaces. Through the use of a housing, the shape of which is formed from a number of twelve or more flat surfaces, a more flexible orientation of the external speaker/microphone apparatus—and therewith of the one or more speakers and the one or more microphones to the user(s)—is made possible. At the same time, the use of flat surfaces allows for a sufficient stableness.Type: ApplicationFiled: August 23, 2013Publication date: July 14, 2016Inventors: Detlef WIESE, Pierre-Henri SAMION, Bernd GEISER, Hauke KRÜGER
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Publication number: 20140297271Abstract: The present invention relates to a speech signal encoding method for encoding an inputted first speech signal into a second speech signal having a narrower available bandwidth than the first speech signal. The method comprises generating a pitch-scaled version of higher frequencies of the first speech signal and including in the second speech signal lower frequencies of the first speech signal and the pitch-scaled version of the higher frequencies. At least a part of the higher frequencies are frequencies that are outside the available bandwidth of the second speech signal. The pitch-scaled version of the higher frequencies is preferably included in the second speech signal with a gain factor having a value of 1 or a value higher than 1. The present invention further relates to a corresponding speech signal decoding method for decoding an inputted first speech signal into a second speech signal having a wider available bandwidth than the first speech signal.Type: ApplicationFiled: March 27, 2014Publication date: October 2, 2014Applicant: Binauric SEInventor: Bernd Geiser
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Patent number: 8612216Abstract: To form an audio signal, frequency components of the audio signal which are allotted to a first subband are formed by means of a subband decoder using supplied fundamental period values which respectively indicate a fundamental period for the audio signal. Frequency components of the audio signal which are allotted to a second subband are formed by exciting an audio synthesis filter using an excitation signal which is specific to the second subband. To produce this excitation signal, an excitation signal generator derives a fundamental period parameter from the fundamental period values. The fundamental period parameter is used by the excitation signal generator to form pulses with a pulse shape which is dependent on the fundamental period parameter at an interval of time which is determined by the fundamental period parameter and to mix them with a noise signal.Type: GrantFiled: January 31, 2006Date of Patent: December 17, 2013Assignee: Siemens Enterprise Communications GmbH & Co. KGInventors: Martin Gartner, Bernd Geiser, Peter Jax, Stefan Schandl, Herve Taddei, Peter Vary
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Patent number: 8412519Abstract: In a method for embedding steganographic information into the signal information of a signal encoder, a solution is to be created, which enables steganographic information being embedded into the signal information of a signal encoder such that a reduction of the voice quality is largely avoided.Type: GrantFiled: August 29, 2007Date of Patent: April 2, 2013Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Bernd Geiser, Peter Vary
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Patent number: 8364476Abstract: The invention pertains to a method and apparatus of efficient encoding and decoding of vector quantized data. The method and system explores and implements sub-division of a quantization vector space comprising class-leader vectors and representation of the class-leader vectors by a set of class-leader root-vectors facilitating faster encoding and decoding, and reduced storage requirements.Type: GrantFiled: October 15, 2010Date of Patent: January 29, 2013Assignee: Huawei Technologies Co., Ltd.Inventors: Peter Vary, Hauke Kruger, Bernd Geiser
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Patent number: 8265940Abstract: A method for the artificial extension of the bandwidth of speech signals involves: a) Provision of a wideband input speech signal (swbi(k)); b) Determination of the signal components (seb(k)) of the wideband input speech signal (swbi(k)) required for the bandwidth extension from an extension band from the wideband input speech signal (swbi(k)); c) Determination of the temporal envelopes of the signal components (seb(k)) determined for the bandwidth extension; d) Determination of the spectral envelopes of the signal components (seb(k)) determined for bandwidth extension; e) Encoding of the information for the temporal envelopes and the spectral envelopes, and provision of the encoded information by carrying out the extension of the bandwidth; f) Decoding of the encoded information and generation of the temporal envelopes and the spectral envelopes from the encoded information for the production of a bandwidth-extended output speech signal (swbo(k)).Type: GrantFiled: June 30, 2006Date of Patent: September 11, 2012Assignee: Siemens AktiengesellschaftInventors: Bernd Geiser, Peter Jax, Stefan Schandl, Herve Taddei, Aulis Telle, Peter Vary
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Patent number: 8135584Abstract: According to the invention, an excitation signal is generated as a result of sampled excitation values in order to excite an audio synthesis filter, the generated sampled excitation values being continuously stored in an adaptive codebook. A noise generator is provided which continuously generates random sampled values. A sequence of the stored sampled excitation values is selected from the adaptive codebook based on a fed audio fundamental frequency parameter by means of which a time gap between the sequence that is to be selected and the actual time reference is predefined. The excitation signal is generated by mixing the selected sequence with a random sequence encompassing actual random sampled valued of the noise generator.Type: GrantFiled: January 31, 2006Date of Patent: March 13, 2012Assignee: Siemens Enterprise Communications GmbH & Co. KGInventors: Bernd Geiser, Peter Jax, Stefan Schandl, Herve Taddei
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Publication number: 20110137645Abstract: The invention pertains to a method and apparatus of efficient encoding and decoding of vector quantized data. The method and system explores and implements sub-division of a quantization vector space comprising class-leader vectors and representation of the class-leader vectors by a set of class-leader root-vectors facilitating faster encoding and decoding, and reduced storage requirements.Type: ApplicationFiled: October 15, 2010Publication date: June 9, 2011Inventors: Peter Vary, Hauke Kruger, Bernd Geiser
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Publication number: 20110131047Abstract: In a method for embedding steganographic information into the signal information of a signal encoder, a solution is to be created, which enables steganographic information being embedded into the signal information of a signal encoder such that a reduction of the voice quality is largely avoided.Type: ApplicationFiled: August 29, 2007Publication date: June 2, 2011Applicant: RWTH AachenInventors: Bernd Geiser, Peter Vary
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Publication number: 20090024399Abstract: To form an audio signal, frequency components of the audio signal which are allotted to a first subband are formed by means of a subband decoder using supplied fundamental period values which respectively indicate a fundamental period for the audio signal. Frequency components of the audio signal which are allotted to a second subband are formed by exciting an audio synthesis filter using an excitation signal which is specific to the second subband. To produce this excitation signal, an excitation signal generator derives a fundamental period parameter from the fundamental period values. The fundamental period parameter is used by the excitation signal generator to form pulses with a pulse shape which is dependent on the fundamental period parameter at an interval of time which is determined by the fundamental period parameter and to mix them with a noise signal.Type: ApplicationFiled: January 31, 2006Publication date: January 22, 2009Inventors: Martin Gartner, Bernd Geiser, Peter Jax, Stefan Schandl, Herve Taddei, Peter Vary
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Publication number: 20090012782Abstract: According to the invention, an excitation signal is generated as a result of sampled excitation values in order to excite an audio synthesis filter, the generated sampled excitation values being continuously stored in an adaptive codebook. A noise generator is provided which continuously generates random sampled values. A sequence of the stored sampled excitation values is selected from the adaptive codebook based on a fed audio fundamental frequency parameter by means of which a time gap between the sequence that is to be selected and the actual time reference is predefined. The excitation signal is generated by mixing the selected sequence with a random sequence encompassing actual random sampled valued of the noise generator.Type: ApplicationFiled: January 31, 2006Publication date: January 8, 2009Inventors: Bernd Geiser, Peter Jax, Stefan Schandl, Herve Taddei
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Publication number: 20080126081Abstract: A method for the artificial extension of the bandwidth of speech signals involves: a) Provision of a wideband input speech signal (swbi(k)); b) Determination of the signal components (seb(k)) of the wideband input speech signal (swbi(k)) required for the bandwidth extension from an extension band from the wideband input speech signal (swbi(k)); c) Determination of the temporal envelopes of the signal components (seb(k)) determined for the bandwidth extension; d) Determination of the spectral envelopes of the signal components (seb(k)) determined for bandwidth extension; e) Encoding of the information for the temporal envelopes and the spectral envelopes, and provision of the encoded information by carrying out the extension of the bandwidth; f) Decoding of the encoded information and generation of the temporal envelopes and the spectral envelopes from the encoded information for the production of a bandwidth-extended output speech signal (swbo(k)).Type: ApplicationFiled: June 30, 2006Publication date: May 29, 2008Applicant: SIEMANS AKTIENGESELLSCHAFTInventors: Bernd Geiser, Peter Jax, Stefan Schandl, Herve Taddei, Aulis Telle, Peter Vary